Settings; Popping Temperature; Feeding Time - RoboLabs Grand Robopop 220 User Manual

4 Settings

4.1 Popping temperature

Temperature regulator has Process value (PV) display (1), Set value (SV) display (2), and ad-
justing keys (3), see Fig.5:
Popping temperature a ects shape and size of popcorn. Too high temperature leads to
smaller popcorn and possible chamber clogging. Too low temperature leads to reduced pro-
ductivity, improperly popped kernels, and clogged chamber. Choose the exact value that pro-
vides the best result for particular corn. Normally, Butterfly corn requires 200-215°C (392-
419°F); Mushroom 210-225°C (410-437°F). Too high temperature causes shrink volume of
popcorn. Too low temperature causes reduced output.
Process value display (1) reads the current temperature in the chamber, Set value display
(2) reads the value defined by user. Press
the set value.
NOTE: During normal operation PV may fluctuate, this is normal.

4.2 Feeding time

Feeding time is the duration auger operates pushing corn kernels to chamber. FEEDING switch
allows to set 35 seconds (1), 40 seconds (2), and 45 seconds (3). Longer time of auger oper-
ation means more corn processed per cycle.
Machine uses chamber optical sensor (pos.3 Fig.2) to control the process. It won't start
the new batch of corn until the previous batch has not processed yet. For this reason, Feeding
time does not directly a ect the overall production of the machine.
Choose the feeding time depending on performance of a certain corn. For example, if corn
has too much moisture, bigger load of corn per batch might cause deeper temperature drop,
unstable operation of the machine, and eventually, poor quality end product. For more stable
operation while using low quality corn, it is recommended to keep Feeding time at minimum.
3
Figure 5: Temperature regulator panel
to decrease the set value. Press
11
1
2
4
to increase